Chapter 4 Replacement Procedures

Transcription

1 Chapter 4 Replacement Procedures

2 4 Replacement Procedures 4-ii Satellite A40 Maintenance Manual ( )

3 4 Replacement Procedures Chapter 4 Contents 4.1 General Battery pack PC card SD card HDD Heat sink/cpu Optical drive Keyboard Memory module Wireless LAN board/modem Daughter Card Wireless LAN board Modem Daughter Card CD/DVD (Audio) play button Display assembly Touch pad LED board RTC battery Sound board System board/bat con cover Fan Modem cable Wireless LAN cover Battery lock assembly Speaker Display mask/lcd unit/fl inverter LCD cable/sensor switch/wireless LAN antenna Hinge Fluorescent Lamp Replacing the 14.1 Inch XGA CHIMEI Fluorescent Lamp Replacing the 14.1 Inch XGA Samsung Fluorescent Lamp Satellite A40 Maintenance Manual ( ) 4-iii

4 4 Replacement Procedures Replacing the 14.1 Inch XGA TMD Fluorescent Lamp Replacing the 15.0 Inch XGA CHIMEI Fluorescent Lamp Replacing the 15.0 Inch XGA LG.Philips Fluorescent Lamp Replacing the 15.0 Inch XGA Samsung Fluorescent Lamp Replacing the 15.0 Inch XGA Sharp Fluorescent Lamp Replacing the 15.0 Inch SXGA+ LG.Philips Fluorescent Lamp Replacing the 15.0 Inch SXGA+ Sharp Fluorescent Lamp Figures Figure 4-1 Removing the battery pack Figure 4-2 Removing the PC card Figure 4-3 Removing the SD card Figure 4-4 Removing the HDD cover Figure 4-5 Detaching the HDD bracket and HDD Figure 4-6 Removing the CPU slot cover and heat sink slot cover Figure 4-7 Removing the CPU holder and heat sink Figure 4-8 Installing the CPU Figure 4-9 Applying new grease Figure 4-10 Removing the optical drive Figure 4-11 Disassembling the optical drivel Figure 4-12 Removing the keyboard holder and keyboard hold plate Figure 4-13 Removing the keyboard support plate Figure 4-14 Removing the memory module Figure 4-15 Removing the wireless LAN board cover Figure 4-16 Removing the wireless LAN board Figure 4-17 Removing the modem daughter card Figure 4-18 Removing the CD/DVD (audio) play button Figure 4-19 Removing the display assembly (1) Figure 4-20 Removing the display assembly (2) Figure 4-21 Removing the display assembly (3) Figure 4-22 Removing the Touch pad iv Satellite A40 Maintenance Manual ( )

5 4 Replacement Procedures Figure 4-23 Removing the LED board Figure 4-24 Removing the RTC battery Figure 4-25 Removing the sound board Figure 4-26 Removing the bat con cover Figure 4-27 Removing the System board Figure 4-28 Removing the fan Figure 4-29 Removing the modem cable Figure 4-30 Removing the wireless LAN cover Figure 4-31 Removing the battery lock assembly Figure 4-32 Removing the insulator Figure 4-33 Removing the speakers Figure 4-34 Installing the left speaker cable Figure 4-35 Removing the display mask Figure 4-36 Removing the LCD unit and FL inverter Figure 4-37 Removing the LCD supports Figure 4-38 Removing the LCD cable holder Figure 4-39 Removing the cable holder Figure 4-40 Removing the hinge cap (on the LCD cable side) and sensor switch Figure 4-41 Removing the sensor switch cable Figure 4-42 Removing the hinge cap (on the other side) Figure 4-43 Removing the wireless LAN antenna Figure 4-44 Removing the screws Figure 4-45 Removing the hinge (1) Figure 4-46 Removing the hinge (2) Figure 4-47 Removing the LCD latch hook and LCD latch knob Figure 4-48 to Inch XGA CHIMEI Fluorescent Lamp to 4-73 Figure 4-55 to Inch XGA Samsung Fluorescent Lamp to 4-79 Figure 4-63 to Inch XGA TMD Fluorescent Lamp to 4-91 Figure 4-75 to Inch XGA CHIMEI Fluorescent Lamp to 4-96 Figure 4-81 to Inch XGA LG.Philips Fluorescent Lamp to Figure 4-89 to Inch XGA Samsung Fluorescent Lamp to Figure 4-98 to Inch XGA Sharp Fluorescent Lamp to Satellite A40 Maintenance Manual ( ) 4-v

6 4 Replacement Procedures Figure to Inch SXGA+ LG.Philips Fluorescent Lamp to Figure to Inch SXGA+ Sharp Fluorescent Lamp to vi Satellite A40 Maintenance Manual ( )

7 4.1 General 4 Replacement Procedures 4 Replacement Procedures 4.1 General This section explains how to disassemble the computer and replace Field Replaceable Units (FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart below is a guide to which FRUs need to be removed in order to remove others. Always start by removing the battery pack, next, optional items such as the optional PC card and optional SD card, then follow the line on the chart to determine which FRU you must remove next in order to repair the one you think is causing the computer to operate improperly. Refer to the example at the bottom of the page. How to See the Chart An example of referring to the chart is shown below. Removing the Display assembly 4.2 Battery Pack to 4.11 CD/DVD (Audio) play button must be removed. Satellite A40 Maintenance Manual ( ) 4-1

8 4 Replacement Procedures 4.1 General Safety Precautions Before you begin disassembly, read the following safety precautions and observe them carefully as you work. DANGER: 1) Always use the genuine battery that is authorized by Toshiba or compatible with the unit. Since other battery packs have different specifications, they may be incompatible with the unit, and may burst or explode. Never heat or disassemble the battery pack, as that could cause leakage of alkaline solution. Never throw the battery pack into a fire, as that could cause the battery pack to explode. 2) The power supply, FL inverter and other components carry high voltages. If you need to turn on the power of a partially disassembled computer to check its operation, be very careful not to touch connectors or components, in order to avoid the risk of electric shock. Also, do not disassemble individual components in first-level maintenance. WARNING: 1) Turn off the power and disconnect the AC adaptor from the power source, to avoid exposure to electric shock. 2) Batteries in the computer retain an electrical charge, so there is danger of electrical shock even when the computer is disconnected from an AC power source. Remove any metal jewelry or accessories such as necklaces, bracelets or rings, in order to reduce the risk of electric shock. Never work with wet or damp hands. 3) Be careful of edges and corners as these may cut. CAUTION: 1) When you change a component, be sure the replacement component meets the required specifications. Never use foreign parts, to avoid any risk of damage to the computer. 2) To avoid any risk of short-circuit, fire or other internal damage, never allow any metal objects such as screws or paper clips to fall into the unit. Be sure to replace screws with the same size as those removed. Make sure all screws are securely fastened. Loose screws can cause short circuits, resulting in heat, smoke or fire. 3) Before lifting out an FRU or other component, make sure all cables to the component have been disconnected, in order to reduce the risk of accidental electric shock. 4) If you use AC power, be sure to use the cable that came with the computer or one recommended by Toshiba. 5) Make sure that all replacement components meet the specifications for the computer and that all cables and connectors are securely fastened, in order to avoid the risk of electric shock. 6) Some parts inside the computer, such as the CPU and cooling module, become very hot during operation. Conduct repair work after they have cooled. Be careful around the CPU and cooling module to avoid burns. 4-2 Satellite A40 Maintenance Manual ( )

9 4.1 General 4 Replacement Procedures Before You Begin Look over the procedures in this section before you begin disassembling the computer. Familiarize yourself with the disassembly and reassembly steps. Begin each procedure by removing the AC adapter and the battery pack as instructed in this section: 1. Do not disassemble the computer unless it is operating abnormally. 2. Use only the correct and approved tools. 3. Make sure the working environment is free from the following elements whether you are using or storing the computer. Dust and contaminates Static electricity Extreme heat, cold and humidity 4. Make sure the FRU you are replacing is causing the abnormal operation by performing the necessary diagnostics tests described in this manual. 5. Do not perform any operations that are not necessary and use only the described procedures for disassembling and installing FRUs in the computer. 6. After removing parts from the computer, place them in a safe place away from the computer so they will not be damaged and will not interfere with your work. 7. You will remove and replace many screws when you disassemble the computer. When you remove screws, make sure they are placed in a safe place and identified with the correct parts. 8. When assembling the computer make sure you use the correct screws to secure the various pieces in place. Screw sizes are listed in their corresponding figures. 9. The computer contains many sharp edges and corners, so be careful not to injure yourself. 10. After you have replaced an FRU, make sure the computer is functioning properly by performing the appropriate test on the FRU you have fixed or replaced. Satellite A40 Maintenance Manual ( ) 4-3

10 4 Replacement Procedures 4.1 General Disassembly Procedures The computer has three basic types of cable connectors: Pressure Plate Connectors Coaxial Cable Connectors Normal Pin Connectors To disconnect a Pressure Plate connector, lift up the tabs on either side of the connector s plastic pressure plate and slide the cable out of the connector. To connect the cable to a Pressure Plate connector, make sure the pressure plate is fully lifted and slide the cable into the connector. Secure the cable in place by pushing the sides of the pressure plate down so the plate is flush with the sides of the connector. Gently pull on the cable to make sure the cable is secure. If you pull out the connector, connect it again making sure the connector s pressure plate is fully lifted when you insert the cable. Coaxial cables should be disconnected with an antenna coaxial disconnector. Standard pin connectors are used with all other cables. These connectors can be connected and disconnected by simply pulling them apart or pushing them together. Assembly Procedures After you have disassembled the computer and fixed or repaired the problem that was causing the computer to operate abnormally, you will need to reassemble the computer. Install all the removed FRUs following the steps described in the corresponding sections in this chapter. While assembling the computer, remember the following general points: Take your time, making sure you follow the instructions closely. Most problems arise when you get in a hurry assembling the computer. Make sure all cables and connectors are securely fastened. Before securing the FRU or other parts, make sure that screws or the FRU will pinch no cables. Check that all latches are closed securely in place. Make sure all the correct screws are used to secure all FRUs. Using the wrong screw can either damage the threads on the screw or the head of the screw and may prevent proper seating of an FRU. After installing an FRU in the computer, confirm that the FRU and the computer are functioning properly. 4-4 Satellite A40 Maintenance Manual ( )

11 4.1 General 4 Replacement Procedures Tools and Equipment The use of Electrostatic Discharge (ESD) equipment is very important for your safety and the safety of those around you. Proper use of these devices will increase the success rate of your repairs and lower the cost for damaged or destroyed parts. The following equipment is necessary to disassemble and reassemble the computer: One M2 point size 0 Phillips screwdriver to remove and replace screws. One M2.5/M3 point size 1 Phillips screwdriver to remove and replace screws. One 4 mm flat-blade screwdriver. Tweezers, to lift out screws that you cannot grasp with your fingers. ESD mats for the floor and the table you are working on. An ESD wrist strap or heel grounder. Anti-static carpeting or flooring. Air ionizers in highly static sensitive areas. Antenna coaxial cable disconnector Brush for applying grease Satellite A40 Maintenance Manual ( ) 4-5

12 4 Replacement Procedures 4.1 General Screw Tightening Torque When you fasten screws, be sure to follow the torque list below. CAUTION: Overtightening can damage components and screws; undertightening can result in electrical shorts or other damage if screws or components come loose. NOTE: Toshiba recommends that you use an electric screwdriver for quick and easy operations. M N m (1.7 kgf cm) M N m (3.0 kgf cm) M N m (5.6 kgf cm) NOTE: The computer contains several flat head screws. These screws have less contact area with the screwdriver, so be careful to press firmly enough to prevent the screwdriver from slipping out and damaging the screw head. 4-6 Satellite A40 Maintenance Manual ( )

13 4.1 General 4 Replacement Procedures Color of Screw Shaft To avoid mistakes on the screw length, screw shafts are colored as follows: Even number length screw: Odd number length screw: Special length screw: brown white blue Screws whose lengths are indicated to one or more decimal places such as 2.5 mm or 2.8 mm. Marking of Screws on the Computer Body To make maintenance of the computer easier, markings of the kinds of the screws including the types and lengths of the screws are indicated on the computer body. Kind of screws BIND screw FLAT HEAD screw SUPER FLAT HEAD screw TAPPING screw Other screws (Unique screws, STUD, etc.) Symbol B F S T U Examples: 6 mm BIND screw 12 mm BIND screw 5 mm FLAT HEAD screw B6 B12 F5 (Indicates the screwed length in round number regardless the length of the stud.) Satellite A40 Maintenance Manual ( ) 4-7

14 4 Replacement Procedures 4.2 Battery pack 4.2 Battery pack Removing the Battery pack To remove the battery pack, follow the steps below and refer to figure 4-1. CAUTION: When handling battery packs, be careful not to short circuit the terminals. Also do not drop, hit or apply impact; do not scratch, break, twist or bend the battery pack. 1. Turn off the computer. 2. Disconnect the AC adapter and other external devices from the computer. 3. Turn the computer face down. 4. Release the battery lock. Lift up the battery pack while sliding the battery latch. NOTE: For environmental reasons, do not throw away a spent battery pack. Collect the spent battery packs. Battery Battery lock Battery latch Figure 4-1 Removing the Battery pack 4-8 Satellite A40 Maintenance Manual ( )

15 4.2 Battery pack 4 Replacement Procedures Installing the Battery pack To install the battery pack, follow the steps below and refer to figure 4-1. CAUTION: The battery pack is a lithium ion battery, which can explode if not properly replaced, used, handled or disposed of. For environmental reasons, collect the spent battery packs. Use only batteries recommended by Toshiba as replacements. NOTE: Check the battery's terminals visually. If they are dirty, wipe them clean with a dry cloth. 1. Install the battery pack into the battery slot. Make sure the battery pack is installed securely. 2. Slide the battery lock into the lock position. Satellite A40 Maintenance Manual ( ) 4-9

16 4 Replacement Procedures 4.3 PC card 4.3 PC card Removing the PC card To remove the PC card, follow the steps below and refer to figure 4-2. CAUTION: Before you remove the PC card, refer to the card's documentation and your operating system documentation for proper procedures and precautions. 1. Turn the computer face up. 2. Push the eject button. It will pop out. 3. Press once more the eject button to eject the PC card. 4. Grasp the PC card and pull it out. PC card Eject button Figure 4-2 Removing the PC card 4-10 Satellite A40 Maintenance Manual ( )

17 4.3 PC card 4 Replacement Procedures Installing the PC card To install the PC card, follow the steps below and refer to figure Make sure the eject button does not stick out. 2. Insert the PC card and press it until it is securely connected. Satellite A40 Maintenance Manual ( ) 4-11

18 4 Replacement Procedures 4.4 SD card 4.4 SD card Removing the SD card To remove the SD card, follow the steps below and refer to figure 4-3. CAUTION: Before you remove the SD card, refer to the card's documentation and to your operating system documentation for proper procedures and precautions. 1. Push the SD card. It will pop out partly. 2. Pull out the SD card. SD card Figure 4-3 Removing the SD card Installing the SD card To install the SD card, follow the steps below and refer to figure Insert the SD card and press it until it is securely connected Satellite A40 Maintenance Manual ( )

19 4.5 HDD 4 Replacement Procedures 4.5 HDD CAUTION: When handling the HDD, do not press the top surface as shown by the arrow. Hold it by the sides. HDD Removing the HDD To remove the HDD, follow the steps below and refer to figures 4-4 and Turn the computer upside down. 2. Remove the following screw securing the HDD cover. Remove the HDD cover by lifting it up. M2.5 4B FLAT HEAD screw 2 M2.5 4B FLAT HEAD HDD cover HDD pack M2.5 4B FLAT HEAD Tab Figure 4-4 Removing the HDD cover Satellite A40 Maintenance Manual ( ) 4-13

20 4 Replacement Procedures 4.5 HDD 3. Remove the following screws and pull the tab of the HDD pack to remove it. Be careful not to damage the connector. M2.5 4B FLAT HEAD screw 1 NOTE: The following steps describe how to disassemble the HDD pack; however, do not disassemble if the HDD is working properly. 4. Remove the following screws. M3 4S FLAT HEAD screw 4 5. Detach the HDD from the HDD bracket. CAUTION: Do not apply pressure to the top and bottom of the HDD. HDD M3 4S FLAT HEAD HDD bracket M3 4S FLAT HEAD Figure 4-5 Detaching the HDD bracket and HDD 4-14 Satellite A40 Maintenance Manual ( )

21 4.5 HDD 4 Replacement Procedures Installing the HDD To install the HDD, follow the steps below and refer to figures 4-4 and 4-5. CAUTION: Do not hold the HDD by its top and bottom. It may damage the HDD. 1. Secure the HDD to the HDD bracket with the following screws. M3 4S FLAT HEAD screw 4 CAUTION: Hold the HDD pack by the sides. 2. Insert the HDD pack into the slot and secure it with the following screws. M2.5 4B FLAT HEAD screw 1 3. Seat the HDD cover and secure it with the following screws. M2.5 4B FLAT HEAD screw 2 Satellite A40 Maintenance Manual ( ) 4-15

22 4 Replacement Procedures 4.6 Heat sink/cpu 4.6 Heat sink/cpu Removing the Heat sink/cpu To remove the heat sink/cpu, follow the steps below and refer to figures 4-6 to 4-9. CAUTION: The CPU can become very hot during operation. Be sure to let it cool before starting repair work. 1. Remove the following screws securing the CPU slot cover. Remove the CPU slot cover by lifting it up. M2.5 4B FLAT HEAD screw 2 2. Remove the following screws securing the heat sink slot cover. Remove the heat sink slot cover by lifting it up. M2.5 4B FLAT HEAD screw 2 M2.5 4B FLAT HEAD CPU slot cover Heat sink slot cover M2.5 4B FLAT HEAD Figure4-6 Removing the CPU slot cover and heat sink slot cover 4-16 Satellite A40 Maintenance Manual ( )

23 4.6 Heat sink/cpu 4 Replacement Procedures 3. Remove the following screws securing the CPU holder, in the reverse order of the number marked on the holder. M2.5 6B FLAT HEAD screw 3 4. Remove the CPU holder. 5. Release the lock lever (lift the lock lever vertically) and lift up the heat sink. M2.5 6B FLAT HEAD Lock lever CPU holder Heat sink Figure4-7 Removing the CPU holder and heat sink 6. Remove the CPU from the heat sink CAUTION: As silicon grease is applied between the heat sink and CPU, the CPU is removed with the heat sink. If the CPU has been left on the CPU socket, remove the CPU. Satellite A40 Maintenance Manual ( ) 4-17

24 4 Replacement Procedures 4.6 Heat sink/cpu Installing the Heat sink/cpu To install the heat sink/cpu, follow the steps below and refer to figures 4-6 to 4-9. CAUTION: Place the CPU in such direction as shown below. (Pay attention to the position of the triangle mark on the CPU.) Make sure the lock lever is lifted up, before installing the CPU. 1. Seat the CPU in the CPU socket and lock the lock lever by pressing it down. Make sure the position is exact to avoid damaging pins of the CPU. CPU CPU socket Mark Lock lever Figure 4-8 Installing the CPU 4-18 Satellite A40 Maintenance Manual ( )

25 4.6 Heat sink/cpu 4 Replacement Procedures 2. Apply new grease on the CPU using a brush as shown in the following figure. Apply appropriate quantity (about 0.5 gram minimum) of grease evenly all over the top face of the CPU chip. When silicon grease is left on to the CPU chip, wipe it off with a cloth in advance. Brush Grease CPU 3. Install the heat sink. Figure 4-9 Applying new grease CAUTION: When installing the heat sink, make sure the bottom of the heat sink covers the top of the CPU. 4. Place the CPU holder and secure it with the following screws in the order of the number marked on the holder. M2.5 6B FLAT HEAD screw 3 5. Place the heat sink slot cover and secure it with following screws. M2.5 4B FLAT HEAD screw 2 6. Place the CPU slot cover and secure it with following screws. M2.5 4B FLAT HEAD screw 2 Satellite A40 Maintenance Manual ( ) 4-19

26 4 Replacement Procedures 4.7 Optical drive 4.7 Optical drive Removing the Optical drive To remove the optical drive, follow the steps below and refer to figures 4-10 and CAUTION: Do not apply excessive force to the top of an optical drive. 1. Turn the computer upside down. 2. Remove the following screws securing the optical drive. M2.5 4B FLAT HEAD screw 2 3. Pull the optical drive outward to disconnect it. M2.5 4B FLAT HEAD Optical drive Figure 4-10 Removing the optical drive 4-20 Satellite A40 Maintenance Manual ( )

27 4.7 Optical drive 4 Replacement Procedures 4. Remove the following screws and detach the optical drive from the plastic frame. M2 3C S-FLAT HEAD screw 2 Stepping screw 1 Optical drive Plastic frame Stepping screw M2 3C S-FLAT HEAD Figure 4-11 Disassembling the optical drivel Satellite A40 Maintenance Manual ( ) 4-21

28 4 Replacement Procedures 4.7 Optical drive Installing the Optical drive To install the optical drive, follow the steps below and refer to figures 4-10 and Seat the optical drive on the plastic frame, and secure them with the following screws. M2 3C S-FLAT HEAD screw 2 Stepping screw 1 2. Insert the optical drive into the slot to connect it. 3. Secure the optical drive with the following screws. M2.5 4B FLAT HEAD screw Satellite A40 Maintenance Manual ( )

29 4.8 Keyboard 4 Replacement Procedures 4.8 Keyboard CAUTION: When removing/installing the keyboard, do not touch the memory module, boards and speakers under the keyboard. It may cause the damages to them. Removing the Keyboard To remove the keyboard, follow the steps below and refer to figures 4-12 and Turn the computer face up and open the display. 2. Hold the both ends of the keyboard holder and lift it up to remove. 3. Remove the following screws securing the keyboard and keyboard hold plate. Then remove the keyboard hold plate. M2.5 4B FLAT HEAD screw 3 Keyboard holder M2.5 4B FLAT HEAD Keyboard hold plate M2.5 4B FLAT HEAD Figure 4-12 Removing the keyboard holder and keyboard hold plate Satellite A40 Maintenance Manual ( ) 4-23

30 4 Replacement Procedures 4.8 Keyboard 4. Lift the upper side of the keyboard up and turn it s face down on the palm rest. 5. Remove the following screw and keyboard support plate. M2.5 6B FLAT HEAD screw 1 6. Disconnect the keyboard cable from the connector PJ3200 on the system board, and remove the keyboard. Keyboard support plate PJ3200 M2.5 6B FLAT HEAD Keyboard cable Figure 4-13 Removing the keyboard support plate 4-24 Satellite A40 Maintenance Manual ( )

31 4.8 Keyboard 4 Replacement Procedures Installing the Keyboard To install the keyboard, follow the steps below and refer to figures 4-12 and Place the keyboard face down on the palm rest. 2. Connect the keyboard cable to the connector PJ3200 on the system board. 3. Place the keyboard support plate and secure it with the following screw. M2.5 6B FLAT HEAD screw 1 4. Turn the keyboard face up and set it. Make sure that there is no gap between the keyboard and the edge of palm rest. 5. Place the keyboard hold plate. Then secure the keyboard hold plates and the keyboard with the following screws. M2.5 4B FLAT HEAD screw 3 6. Install the keyboard holder by pressing it from the topside. Satellite A40 Maintenance Manual ( ) 4-25

32 4 Replacement Procedures 4.9 Memory module 4.9 Memory module CAUTION: The power of the computer must be turned off when you remove the memory module. Removing a memory module with the power on risks damaging the module or the computer itself. Do not touch the memory module terminals. Any dirt on the terminals may cause memory access problems. Never press hard or bend the memory module. Removing the memory module To remove the memory module, confirm that the computer is in boot mode. Then perform the following procedures (See Figure 4-14). 1. Peel the insulator. 2. Open the left and right latches and remove the memory module from slot A or slot B on the system board. Insulator Memory slot B Memory module Latch Memory slot A Figure 4-14 Removing the memory module 4-26 Satellite A40 Maintenance Manual ( )

33 4.9 Memory module 4 Replacement Procedures Installing the memory module To install the memory module, confirm that the computer is in boot mode. Then follow the steps below and refer to figures Insert the memory module into the connector of the computer slantwise (terminal side first) and press it to connect firmly. CAUTION: The power must be turned off when you insert the memory module. Inserting a memory module with the power on might damage the module or the computer itself. Do not install a memory module in slot B only. Use slot A prior to slot B. Otherwise, the computer or the memory may be damaged. Never press hard or bend the memory module. 2. When the power of the computer is turned on, the computer checks automatically the memory size. Confirm that the new memory is detected correctly. 3. If the memory is not detected, check that it is connected correctly. Satellite A40 Maintenance Manual ( ) 4-27

34 4 Replacement Procedures 4.10 Wireless LAN board/modem Daughter Card 4.10 Wireless LAN board/modem Daughter Card Wireless LAN board CAUTION: The power must be turned off when you remove the wireless LAN board. Removing the wireless LAN board with the power on risks damaging the board or the computer itself. Never press hard or bend the wireless LAN board. Removing the wireless LAN board To remove the wireless LAN board, follow the steps below and refer to figure 4-15 and Remove the screw fixing the wireless LAN board cover. M2 4Z BIND screw 1 or M2 4 LH STICK screw 1 (Athelos a/b/g) 2. Slide the wireless LAN board cover to the left and lift it up to remove. M2 4Z BIND or M2 4 LH STICK Wireless LAN board cover Figure 4-15 Removing the wireless LAN board cover 4-28 Satellite A40 Maintenance Manual ( )

35 4.10 Wireless LAN board/modem Daughter Card 4 Replacement Procedures 3. Peel off the glass tape and disconnect the two wireless LAN antenna cables (black and white) from the wireless LAN board. 4. Open the left and right latches and remove the wireless LAN board. Glass tape Wireless LAN antenna cable (black) Wireless LAN antenna cable (white) Wireless LAN board Latch Figure 4-16 Removing the wireless LAN board Satellite A40 Maintenance Manual ( ) 4-29

36 4 Replacement Procedures 4.10 Wireless LAN board/modem Daughter Card Installing the wireless LAN board To install the wireless LAN board, follow the steps below and refer to figure 4-15 and Insert the wireless LAN board terminals slantwise into the connector on the computer and press the wireless LAN board until it is securely in place. 2. Connect the wireless LAN cables (black and white) to the terminals on the wireless LAN board and fix them with the glass tape. 3. Install the wireless LAN board cover and secure it with the following screw. M2 4Z BIND screw 1 or M2 4 LH STICK screw 1 (Athelos a/b/g) 4-30 Satellite A40 Maintenance Manual ( )

37 4.10 Wireless LAN board/modem Daughter Card 4 Replacement Procedures Modem Daughter Card CAUTION: The power must be turned off when you remove the modem daughter card. Removing the modem daughter card with the power on risks damaging the card or the computer itself. Removing the Modem Daughter Card To remove the modem daughter card, follow the steps below and refer to figure Remove the following screws securing the modem daughter card. M2 4Z BIND screw 2 2. Lift up gently the modem daughter card perpendicularly to disconnect it from the connector PJ3000 on the system board. CAUTION: When removing/installing the modem daughter card, be sure to hold the modem daughter card by both the edges right above the connector PJ Disconnect the modem cable from the connector on the modem daughter card. M2 4Z BIND MDC Modem cable PJ3000 Figure 4-17 Removing the modem daughter card Satellite A40 Maintenance Manual ( ) 4-31

38 4 Replacement Procedures 4.10 Wireless LAN board/modem Daughter Card Installing the Modem Daughter Card To install the modem daughter card, follow the steps below and refer to figures Connect the modem cable to the connector on the modem daughter card. 2. Connect the modem daughter card to the connector PJ3000 on the system board. CAUTION: Be careful not to damage the card and connector. 3. Secure the modem daughter card with the following screws. M2 4Z BIND screw Satellite A40 Maintenance Manual ( )

39 4.11 CD/DVD (Audio) play button 4 Replacement Procedures 4.11 CD/DVD (Audio) play button CAUTION: When removing/installing the CD/DVD (audio) play button, do not touch the speakers. It may cause any damage. Removing the CD/DVD (audio) play button To remove the CD/DVD (audio) play button, follow the steps below and refer to figure Remove the following screws fixing the CD/DVD (audio) play button. M2.5 4B FLAT HEAD screw 2 2. Disconnect the CD/DVD (audio) play button cable and remove the CD/DVD (audio) play button. M2.5 4B FLAT HEAD CD/DVD (audio) play button CD/DVD (audio) play button cable Figure 4-18 Removing the CD/DVD (audio) play button Installing the CD/DVD (audio) play button To install the CD/DVD (audio) play button, follow the steps below and refer to figure Connect the CD/DVD (audio) play button cable to the CD/DVD (audio) play button. 2. Place the CD/DVD (audio) play button into the slot and secure it with the following screws. M2.5 4B FLAT HEAD screw 2 Satellite A40 Maintenance Manual ( ) 4-33

40 4 Replacement Procedures 4.12 Display assembly 4 Replacement Procedures 4.12 Display assembly Removing the Display assembly To remove the display assembly, follow the steps below and refer to figures 4-19 to Turn the computer upside down. 2. Remove the following screws. M2.5 16B FLAT HEAD screw 12 ( 16 in the figure below) M2.5 6B FLAT HEAD screw 7 ( 6 in the figure below) M2.5 3B S-FLAT HEAD screw 5 ( 3 in the figure below) Figure 4-19 Removing the display assembly (1) 4-34 Satellite A40 Maintenance Manual ( )

41 4.12 Display assembly 4 Replacement Procedures 3. Turn the computer face up and open the display. 4. Remove the following screws securing the display assembly. M2.5 6B FLAT HEAD screw 2 5. Disconnect the LCD cable from the connector PJ5600 on the system board. 6. Disconnect the speaker cables from the connectors PJ6001 (blue) and PJ6002 (red) on the system board. 7. Disconnect the panel sensor cable from the connector PJ3302 on the system board. LCD cable Speaker cable (blue) Panel sensor cable Speaker cable (red) M2.5 6B FLAT HEAD Figure 4-20 Removing the display assembly (2) Satellite A40 Maintenance Manual ( ) 4-35

42 4 Replacement Procedures 4.12 Display assembly 8. Remove the display assembly from the base assembly while unhooking the latches. Display assembly Figure 4-21 Removing the display assembly (3) NOTE: When removing the display assembly, be careful not to damage any cables Satellite A40 Maintenance Manual ( )

43 4.12 Display assembly 4 Replacement Procedures Installing the Display assembly To install the display assembly, follow the steps below and refer to figures 4-19 to Install the display assembly on the base assembly. NOTE: When installing the display assembly, be careful not to pinch or damage any cables. 2. Press along the edges of the display assembly to secure the latches. 3. Connect the panel sensor cable to the connector PJ3302 on the system board. 4. Connect the speaker cables to the connectors PJ6001 (blue) and PJ6002 (red) on the system board. 5. Connect the LCD cable to the connector PJ5600 on the system board. 6. Secure the display assembly with the following screws. M2.5 6B FLAT HEAD screw 2 7. Turn the computer face down and secure the display assembly with the following screws. M2.5 16B FLAT HEAD screw 12 ( 16 in the figure below) M2.5 6B FLAT HEAD screw 7 ( 6 in the figure below) M2.5 3B S-FLAT HEAD screw 5 ( 3 in the figure below) Satellite A40 Maintenance Manual ( ) 4-37

44 4 Replacement Procedures 4.13 Touch pad 4.13 Touch pad Removing the Touch pad To remove the touch pad, follow the steps below and refer to figures Disconnect the touch pad flexible cable from the connector PJ3260 on the system board. 2. Remove the following screws securing the touch pad. M2.5 3B S-FLAT HEAD screw 2 3. Remove the touch pad. M2.5 3B S-FLAT HEAD Touch pad flexible cable Touch pad PJ3260 Figure 4-22 Removing the touch pad 4. Disconnect the touch pad flexible cable from the connector on the touch pad Satellite A40 Maintenance Manual ( )

45 4.13 Touch pad 4 Replacement Procedures Installing the Touch pad To install the touch pad, follow the steps below and refer to figures Connect the touch pad flexible cable to the connector on the touch pad. 2. Install the touch pad and secure it with the following screws. M2.5 3B S-FLAT HEAD screw 2 3. Connect the touch pad flexible cable to the connector PJ3260 on the system board. Satellite A40 Maintenance Manual ( ) 4-39

46 4 Replacement Procedures 4.14 LED board 4.14 LED board Removing the LED board The following describes the procedure for removing the LED board (See Figure 4-23). 1. Remove the following screw and LED board from the system board. M2.5 6B FLAT HEAD screw 1 2. Disconnect the LED cable from the connector PJ9500 on the system board. 3. Disconnect the LED cable from the LED board. M2.5 6B FLAT HEAD PJ9500 LED cable LED board Figure 4-23 Removing the LED board 4-40 Satellite A40 Maintenance Manual ( )

47 4.14 LED board 4 Replacement Procedures Installing the LED board The following describes the procedure for installing the LED board (See Figure 4-23). 1. Connect the LED cable to the LED board and to the connector PJ9500 on the system board. NOTE: When connecting the LED cable, the bent portion of the cable must be connected to the connector on the LED board. 2. Fix the LED board to the system board with the following screw. M2.5 6B FLAT HEAD screw 1 Satellite A40 Maintenance Manual ( ) 4-41

48 4 Replacement Procedures 4.15 RTC battery 4.15 RTC battery WARNING: When replacing the RTC battery, be sure to use genuine batteries or replacement batteries authorized by Toshiba. Installing the wrong battery could cause a battery explosion or other damage. If the RTC battery is found abnormal, it must not be installed. Replace it with a new battery, and dispose of the old one according to the local regulations. Check for any of the following signs of damage: 1) Electrolyte leakage Corrosion (greenish color) on the battery connector or cable Corrosion on the computer's battery connector White powder on any part of the battery White powder in the battery tray Clear liquid on the battery Clear liquid in the battery tray Clear liquid on any board near the battery 2) Damage to the connection cable 3) Damage to the connector housing If any powder or liquid is found in or around the battery tray, clean it. Be careful not to let any leaked material contact your eyes or mouth. Do not inhale fumes from leaked material. If leaked material contacts your skin, eyes or mouth, wash the affected area thoroughly with clean water Satellite A40 Maintenance Manual ( )

49 4.15 RTC battery 4 Replacement Procedures Removing the RTC battery To remove the RTC battery, follow the steps below and refer to figure Disconnect the RTC battery cable from the connector PJ8490 on the system board. 2. Peel the insulators and remove the RTC battery. Insulator PJ8490 RTC battery cable Insulator RTC battery Figure 4-24 Removing the RTC battery Installing the RTC battery To install the RTC battery, follow the steps below and refer to figure Place the RTC battery into the slot. 2. Connect the RTC battery cable to the connector PJ8490 on the system board. 3. Fix the RTC battery with the insulators. Satellite A40 Maintenance Manual ( ) 4-43

50 4 Replacement Procedures 4.16 Sound board 4.16 Sound board Removing the Sound board To remove the sound board, follow the steps below and refer to figure Disconnect the sound board I/F cable from the connector PJ9550 on the system board and from the connector on the sound board. 2. Remove the following screws securing the sound board. M2.5 6B FLAT HEAD screw 2 3. Remove the sound board. Sound board I/F cable PJ9550 M2.5 6B FLAT HEAD Sound board Figure 4-25 Removing the sound board 4-44 Satellite A40 Maintenance Manual ( )

51 4.16 Sound board 4 Replacement Procedures Installing the Sound board To install the sound board, follow the steps below and refer to figure Connect the sound board I/F cable to the connector on the sound board. 2. Install the sound board slantwise to fit the guide and secure it with the following screws. M2.5 6B FLAT HEAD screw 2 3. Connect the sound board I/F cable to the connector PJ9550 on the system board. Satellite A40 Maintenance Manual ( ) 4-45

52 4 Replacement Procedures 4.17 System board/ Bat con cover 4.17 System board/ Bat con cover Removing the System board/bat con cover To remove the system board/bat con cover, follow the steps below and refer to figures 4-26 and Remove the following screw and bat con cover. M2.5 6B FLAT HEAD screw 1 M2.5 6B FLAT HEAD Bat con cover Figure 4-26 Removing the bat con cover 4-46 Satellite A40 Maintenance Manual ( )

53 4.17 System board/ Bat con cover 4 Replacement Procedures 2. Remove the following screw securing the system board. M2.5 6B FLAT HEAD screw 1 3. Peel off the glass tape and disconnect the fan cable 1 from the connector PJ8450 on the system board. 4. Peel of the glass tape and disconnect the fan cable 2 from the connector PJ8425 on the system board. 5. Lift up the system board to remove. System board Glass tape Fan cable 2 PJ8425 Glass tape Fan cable 1 PJ8450 M2.5 6B FLAT HEAD Figure 4-27 Removing the system board Satellite A40 Maintenance Manual ( ) 4-47

54 4 Replacement Procedures 4.17 System board/ Bat con cover Installing the System board/bat con cover To install the system board/bat con cover, follow the steps below and refer to figures 4-26 and Install the system board. NOTE: When installing the system board, be careful not to pinch or damage the fan cables. 2. Connect the fan cable 2 to the connector PJ8425 on the system board and stick the glass tape. 3. Connect the fan cable 1 to the connector PJ8450 on the system board and stick the glass tape. 4. Secure the system board with the following screw. M2.5 6B FLAT HEAD screw 1 5. Install the bat con cover and secure it with the following screw. M2.5 6B FLAT HEAD screw Satellite A40 Maintenance Manual ( )

55 4.18 Fan 4 Replacement Procedures 4.18 Fan Removing the Fan To remove the fan, follow the steps below and refer to figure Remove the following screws securing the fan 1. M2.5 6B FLAT HEAD screw 2 2. Remove the fan Remove the following screws securing the fan 2. M2.5 6B FLAT HEAD screw 2 4. Remove the fan 2. Fan 1 Fan 2 M2.5 6B FLAT HEAD M2.5 6B FLAT HEAD Figure4-28 Removing the fan Satellite A40 Maintenance Manual ( ) 4-49

56 4 Replacement Procedures 4.18 Fan Installing the Fan To install the fan, follow the steps below and refer to figure Install the fan 2 and secure it with the following screws. M2.5 6B FLAT HEAD screw 2 2. Install the fan 1 and secure it with the following screws. M2.5 6B FLAT HEAD screw Satellite A40 Maintenance Manual ( )

57 4.19 Modem cable 4 Replacement Procedures 4.19 Modem cable Removing the Modem cable To remove the modem cable, follow the steps below and refer to figures Remove the RJ11 jack while unlatching the hooks. RJ11 jack Modem cable Figure 4-29 Removing the modem cable Installing the Modem cable To install the modem cable, follow the steps below and refer to figures Install the RJ11 jack while latching the hooks. Satellite A40 Maintenance Manual ( ) 4-51

58 4 Replacement Procedures 4.20 Wireless LAN cover 4.20 Wireless LAN cover Removing the Wireless LAN cover To remove the wireless LAN cover, follow the steps below and refer to figure Remove the wireless LAN cover while unlatching. Wireless LAN cover Figure 4-30 Removing the wireless LAN cover Installing the Wireless LAN cover To install the wireless LAN cover, follow the steps below and refer to the figure Install the wireless LAN cover in the slot while latching Satellite A40 Maintenance Manual ( )

59 4.21 Battery lock assembly 4 Replacement Procedures 4.21 Battery lock assembly Removing the Battery lock assembly To remove the battery lock assembly, follow the steps below and refer to figures Remove the following screws securing the battery lock assembly. M2.5 6 Tapping screw 2 Battery lock assembly M2.5 6 Tapping screw Figure 4-31 Removing the battery lock assembly 2. Remove the battery lock assembly. Installing the Battery lock assembly To install the Battery lock assembly, follow the steps below and refer to figures Install the battery lock assembly and secure it with the following screws. M2.5 6 Tapping screw 2 Satellite A40 Maintenance Manual ( ) 4-53

60 4 Replacement Procedures 4.22 Speaker 4.22 Speaker Removing the Speaker To remove the speaker, follow the steps below and refer to figures 4-32 and Peel off the insulator. Insulator Figure 4-32 Removing the insulator 4-54 Satellite A40 Maintenance Manual ( )

61 4.22 Speaker 4 Replacement Procedures 2. Remove the following screws fixing the speakers. M2.5 6 Tapping screw 4 M2.5 6 Tapping M2.5 6 Tapping Speaker Speaker Figure 4-33 Removing the speakers 3. Take out the speakers from the slots and the cables from the guides/holes. Satellite A40 Maintenance Manual ( ) 4-55

62 4 Replacement Procedures 4.22 Speaker Installing the Speaker To install the speaker, follow the steps below and refer to figures 4-32 to Set both the speakers in the slot and pass the cables through the hole and guide. Left Speaker cable Figure 4-34 Installing the left speaker cable 2. Secure the following screws to fix the speakers. M2.5 6 Tapping screw 4 3. Stick the insulator in place Satellite A40 Maintenance Manual ( )

63 4.23 Display mask/lcd unit/fl inverter 4 Replacement Procedures 4.23 Display mask/lcd unit/fl inverter Removing the Display mask/lcd unit/fl inverter The following describes the procedure for removing the display mask, LCD unit and FL inverter (See Figure 4-35 to 4-37). 1. Peel off two mask seals and remove the following screws. M2.5 6B FLAT HEAD screw x2 2. Insert your finger between the upper edge of the display mask and the LCD, and remove the display mask while unlatching the display mask. Mask seal LCD M2.5 6B FLAT HEAD Display mask Figure 4-35 Removing the display mask Satellite A40 Maintenance Manual ( ) 4-57

64 4 Replacement Procedures 4.23 Display mask/lcd unit/fl inverter 3. Remove the following screw fixing the FL inverter. M2 5C S-FLAT HEAD screw x1 4. Peel off the insulator adhered to the FL inverter. 5. Disconnect the FL cable under the insulator and HV cable from the FL inverter. 6. Remove the following screws fixing the LCD unit. M2 5C S-FLAT HEAD screw x4 7. With the bottom edge of the LCD unit on the display cover, lift the top edge of the LCD unit. 8. After peeling off the glass tape, disconnect the LCD cable from the connector on the back of the LCD. Remove the LCD unit. M2 5C S-FLAT HEAD Insulator FL cable M2 5C S-FLAT HEAD FL inverter HV cable M2 5C S-FLAT HEAD LCD cable Glass tape Figure 4-36 Removing the LCD unit and FL inverter 4-58 Satellite A40 Maintenance Manual ( )

65 4.23 Display mask/lcd unit/fl inverter 4 Replacement Procedures 9. Remove the following screws and right and left LCD supports from the LCD unit. M2 3C S-FLAT HEAD screw x4 M2 3C S-FLAT HEAD LCD support M2 3C S-FLAT HEAD Figure 4-37 Removing the LCD supports Satellite A40 Maintenance Manual ( ) 4-59

66 4 Replacement Procedures 4.23 Display mask/lcd unit/fl inverter Installing the Display mask/lcd unit/fl Inverter The following describes the procedure for installing the display mask, LCD unit and FL inverter (See Figure 4-35 to 4-37). 1. Fix the LCD supports (left and right) to the LCD unit with the following screws. M2 3C S-FLAT HEAD screw x4 NOTE: The shape of the right LCD support for 14.1-inch LCD is different from the one of the left. Check R (right) or L (left) marks on the LCD support. 2. Stand the LCD unit on the display cover and connect the LCD cable to the connector on the back of the LCD. Stick the glass tape on the LCD cable. 3. Fix the LCD unit with the following screws. M2 5C S-FLAT HEAD screw x4 4. Connect the FL cable and HV cable to the FL inverter. 5. Insert one insulator under the LCD unit (over the FL cable) and stick the other one to the FL inverter. 6. Secure the FL inverter with the following screw. M2 5C S-FLAT HEAD screw x1 7. Install the display mask and engage the latches. NOTE: When installing the display mask, ensure there is no gap between the display mask and the display cover. 8. Secure the display mask with the following screws and stick two mask tapes on the front. M2.5 6B FLAT HEAD screw x Satellite A40 Maintenance Manual ( )

67 4.24 LCD cable/sensor switch/wireless LAN antenna 4 Replacement Procedures 4.24 LCD cable/sensor switch/wireless LAN antenna Removing the LCD cable/sensor switch/wireless LAN antenna To remove the LCD cable/sensor switch/wireless LAN antenna, follow the steps below and refer to figures 4-38 to Remove the following screws and LCD cable holder on the back. M2.5 4 Tapping screw 2 M2.5 4 Tapping LCD cable holder Figure 4-38 Removing the LCD cable holder 2. Remove the following screw and cable holder on the front. M2.5 4 Tapping screw 1 M2.5 4 Tapping Cable holder Figure 4-39 Removing the cable holder Satellite A40 Maintenance Manual ( ) 4-61

68 4 Replacement Procedures 4.24 LCD cable/sensor switch/wireless LAN antenna 3. Remove the hinge cap (at the LCD cable side). 4. Pull out the LCD cable from the hole. 5. Remove the sensor switch while unhooking the latches. Hinge cap Sensor switch Figure 4-40 Removing the hinge cap (on the LCD cable side) and sensor switch 6. Peel off the acetate tape on the back and take out the sensor switch cable from the guide and hole. Acetate tape Sensor switch cable Wireless LAN antenna Acetate tape Figure 4-41 Removing the sensor switch cable 4-62 Satellite A40 Maintenance Manual ( )

69 4.24 LCD cable/sensor switch/wireless LAN antenna 4 Replacement Procedures 7. Remove the hinge cap (on the other side). Hinge cap Figure 4-42 Removing the hinge cap (on the other side) 8. Peel off the five acetate tapes on the front (figure4-43) and one acetate tape (figure4-41) on the back fixing the wireless LAN antenna cable. 9. Peel off both the wireless LAN antennas and pull out the cables through the hole under the hinge cap. Acetate tape Acetate tape Wireless LAN antenna Acetate tape Figure 4-43 Removing the wireless LAN antenna Satellite A40 Maintenance Manual ( ) 4-63

70 4 Replacement Procedures 4.24 LCD cable/sensor switch/wireless LAN antenna Installing the LCD cable/sensor switch/wireless LAN antenna To install the LCD cable/sensor switch/wireless LAN antenna, follow the steps below and refer to figures 4-38 to Stick the wireless LAN antennas. 2. Pass the wireless LAN antenna cables through the hole. 3. Secure the wireless LAN antenna cables with the six acetate tapes (one tape at the back, five tapes at the front). 4. Install the hinge cap (on the opposite side of the LCD cable side). 5. Install the sensor switch while hooking the latches. 6. Pass the sensor switch cable through the holes and guides and stick the acetate tape. 7. Pass the LCD cable through the holes and guides. 8. Set the LCD cable holder and secure it with the following screw. M2.5 4 Tapping screw 2 9. Set the cable holder and secure it with the following screw. M2.5 4 Tapping screw Install the hinge cap (at the LCD cable side) Satellite A40 Maintenance Manual ( )

71 4.25 Hinge 4 Replacement Procedures 4.25 Hinge Removing the Hinge To remove the hinge, follow the steps below and refer to figures 4-44 to Remove the following screws. M2.5 6 Tapping screw 2 M2.5 4B FLAT HEAD screw 2 M2.5 6 Tapping M2.5 4B FLAT HEAD M2.5 4B FLAT HEAD Figure 4-44 Removing the screws Satellite A40 Maintenance Manual ( ) 4-65

72 4 Replacement Procedures 4.25 Hinge 2. Peel off the insulator and remove the following screws and hinge while turning it. M2.5 6 Tapping screw 2 M2.5 6 Tapping Figure 4-45 Removing the hinge (1) 3. Remove the following screws and hinge while turning it. M2.5 6 Tapping screw 2 M2.5 6 Tapping Figure 4-46 Removing the hinge (2) 4-66 Satellite A40 Maintenance Manual ( )

73 4.25 Hinge 4 Replacement Procedures 4. Pull out the LCD latch hook. 5. Remove the LCD latch knob. LCD latch knob LCD latch hook Figure 4-47 Removing the LCD latch hook and LCD latch knob NOTE: Be careful not to lose the spring. Satellite A40 Maintenance Manual ( ) 4-67

74 4 Replacement Procedures 4.25 Hinge Installing the Hinge To install the hinge, follow the steps below and refer to figures 4-37 to Install the LCD latch knob and LCD latch hook. Be careful not to lose the spring. 2. Set both the hinges on the base side and secure them with the following screws. M2.5 6 Tapping screw 4 3. Secure the hinges on the display cover with the following screws. M2.5 4B FLAT HEAD screw 2 M2.5 6 Tapping screw Satellite A40 Maintenance Manual ( )

75 4.26 Fluorescent lamp 4 Replacement Procedure Fluorescent lamp This system uses LCD modules from the following suppliers. The procedure for replacing the fluorescent lamp is different for each LCD module. Refer to the appropriate procedure. Type Part No. Supplier Section 14.1 inch (XGA) VF2093P01 Chimei VF2058P01 Samsung G33C TMD inch (XGA) G33C0000M110 Chimei G33C0000K110 LG.Philips G33C0000L110 Samsung G33C0000Q110 Sharp G33C0000Q310 Sharp inch (SXGA+) G33C0000R110 LG.Philips G33C0000P110 Sharp NOTE: - When working with a LCD module, always use a flat, grounded table. - Handle the backlight unit in the environment without dust, such as on the clean bench. Keep the worktable free from any screws or other material that may scratch the LCD surface. - Use an anti-static or protective sheet. - When replacing the FL unit, cover with a finger protector or similar to prevent soiling or scratching the LCD panel. - Be careful when handling the lamp. Excessive force may break the lamp. - Be careful not to soil or deform the lamp reflector. - Make sure that the power of the LCD module is turned off before connecting or disconnecting cables and connectors. Satellite A40 Maintenance Manual ( ) 4-69

76 4 Replacement Procedure 4.26 Fluorescent lamp Replacing the 14.1 Inch XGA CHIMEI Fluorescent lamp The following describes the procedure for replacing the fluorescent lamp (See Figure 4-48 to Figure 4-54). 1. Remove the tapes, labels and films (1 to 8). 2. Remove the latch. Figure 4-48 Replacing 14.1 Inch CHIMEI fluorescent lamp (1) Figure 4-49 Replacing 14.1 Inch CHIMEI fluorescent lamp (2) 4-70 Satellite A40 Maintenance Manual ( )

77 4.26 Fluorescent lamp 4 Replacement Procedure 3. Remove the screw and PCB cover. Figure 4-50 Replacing 14.1 Inch CHIMEI fluorescent lamp (3) 4. Loosen the X-PCB connector and disconnect the FPC from the Y-PCB. 5. Remove the X-PCB and Y-PCB. Figure 4-51 Replacing 14.1 Inch CHIMEI fluorescent lamp (4) Satellite A40 Maintenance Manual ( ) 4-71

78 4 Replacement Procedure 4.26 Fluorescent lamp 6. Remove the spacer from the protector sheet. 7. Remove the sheets (2) to (5). Figure 4-52 Replacing 14.1 Inch CHIMEI fluorescent lamp (5) 8. Remove the LGP and reflection sheet. Figure 4-53 Replacing 14.1 Inch CHIMEI fluorescent lamp (6) 4-72 Satellite A40 Maintenance Manual ( )

79 4.26 Fluorescent lamp 4 Replacement Procedure 9. Remove the screw. Figure 4-54 Replacing 14.1 Inch CHIMEI fluorescent lamp (7) 10. The assembly procedure is the reverse of the above disassembly procedure. Satellite A40 Maintenance Manual ( ) 4-73

80 4 Replacement Procedure 4.26 Fluorescent lamp Replacing the 14.1 Inch XGA Samsung Fluorescent lamp The following describes the procedure for replacing the fluorescent lamp (See Figure 4-55 to Figure 4-62) 1. Remove the PCB cover and tapes from the LCD module. Be careful not to damage the PCB. Figure 4-55 Replacing 14.1 Inch Samsung fluorescent lamp (1) 4-74 Satellite A40 Maintenance Manual ( )

81 4.26 Fluorescent lamp 4 Replacement Procedure 2. Remove two screws fixing the PCB. Be careful not to damage the PCB. Screw Screw Figure 4-56 Replacing 14.1 Inch Samsung fluorescent lamp (2) Satellite A40 Maintenance Manual ( ) 4-75

82 4 Replacement Procedure 4.26 Fluorescent lamp 3. Remove the metal bezel from the plastic chassis by detaching the top hooks, side hooks and bottom hooks. Figure 4-57 Replacing 14.1 Inch Samsung fluorescent lamp (3) 4. Remove the panel from the backlight unit. Be careful not to damage the TCP. Panel Backlight Unit Figure 4-58 Replacing 14.1 Inch Samsung fluorescent lamp (4) 4-76 Satellite A40 Maintenance Manual ( )

83 4.26 Fluorescent lamp 4 Replacement Procedure 5. Remove two clips. Remove the sheets (lens sheet, diffusion sheet, light guide and reflection sheet). Figure 4-59 Replacing 14.1 Inch Samsung fluorescent lamp (5) 6. Remove two screws fixing the lamp cover and remove the lamp cover. Screw Screw Figure 4-60 Replacing 14.1 Inch Samsung fluorescent lamp (6) Satellite A40 Maintenance Manual ( ) 4-77

84 4 Replacement Procedure 4.26 Fluorescent lamp 7. Remove the GND cable of the FL lamp from the plastic chassis. GND cable Hot wire Figure 4-61 Replacing 14.1 Inch Samsung fluorescent lamp (7) 4-78 Satellite A40 Maintenance Manual ( )

85 4.26 Fluorescent lamp 4 Replacement Procedure 8. Remove the lamp unit from the plastic chassis and replace the lamp with a new one. Lamp ASSY Figure 4-62 Replacing 14.1 Inch Samsung fluorescent lamp (8) 9. The assembly procedure is the reverse of the above disassembly procedure. Satellite A40 Maintenance Manual ( ) 4-79

86 4 Replacement Procedure 4.26 Fluorescent lamp Replacing the 14.1 Inch XGA TMD Fluorescent lamp The following describes the procedure for replacing the fluorescent lamp (See Figure 4-63 to Figure 4-74) Disassembling Fluorescent lamp Peeling off the tapes and insulation sheets 1. Flip the module over and place it on a flat surface that is free of foreign objects. 2. In the order (1), (2), and (3) shown in Figure 4-63, remove the tape for fixing the FL tube cable, two pieces of tape on the bezel that are close to the FL tube, and the X- PCB insulation sheet. CAUTION: (1) Be careful not to damage the TAB. (2) Leave the insulation sheet on the bezel to allow the reuse of the sheet. Product 製品ラベル label F >PC-GF13< Label (cautions FL for 破棄ラベル disposal of FL tubes) BL BL S/N S/N label ラベル CAUTION CAUTION ラベル label Figure 4-63 Replacing 14 Inch TMD fluorescent lamp (1) 4-80 Satellite A40 Maintenance Manual ( )

87 4.26 Fluorescent lamp 4 Replacement Procedure Removing the screws 1. Spread out the insulation sheet without detaching it from the side of the bezel, as shown in Figure In the order (1) and (2) shown in Figure 4-64, remove the screws from the left- and right-hand sides of the module. CAUTION: To unfasten the screws, use an insert bit of point size 0 for Philips screwdrivers. Product label 製品ラベル 2 1 F >PC-GF13< Label (cautions FL FL disposal 破棄ラベル for disposal label of FL tubes) BL BL S/N S/N label ラベル 2 2 CAUTION CAUTION ラベル label 1 1 Figure 4-64 Replacing 14 Inch TMD fluorescent lamp (2) Satellite A40 Maintenance Manual ( ) 4-81

88 4 Replacement Procedure 4.26 Fluorescent lamp Removing the bezel 1. Without removing the insulation tape, flip the module over again so that the display screen can face up. 2. Release the latches of the bezel and frame. (On the sides, there are five latches in the upper area and two latches in the lower area.) 3. Gently remove the double-sided tape from the cell at the reverse side of the bottom of the bezel and remove the bezel. 4. Remove the double-sided tape remaining at the bottom of the cell and on the reverse side of the bezel. CAUTION: Do not damage the TAB when releasing the latches on the upper area. When removing the bezel, gently remove the top double-sided tape at the bottom of the surface of the bezel to prevent cell damage. Be careful not to deform the bezel. 2 1 Figure 4-65 Replacing 14 Inch TMD fluorescent lamp (3) 4-82 Satellite A40 Maintenance Manual ( )

89 4.26 Fluorescent lamp 4 Replacement Procedure Opening the PCB 1. Spread out the PCB horizontally, as shown in Figure CAUTION: Be careful not to damage the TAB. Open XPCB the X-PCB を裏面から開く from the reverse. side. 1 Figure 4-66 Replacing 14 Inch TMD fluorescent lamp (4) Satellite A40 Maintenance Manual ( ) 4-83

90 4 Replacement Procedure 4.26 Fluorescent lamp Removing the PCB-assembly cell 1. Remove the cell of the PCB assembly from the backlight assembly, as indicated by (1) in Figure Completely remove the double-sided tape remaining on the reverse side of the cell. CAUTION: On the cell, three areas are bonded to the frame with the double-sided tape (as shown in Figure 4-67, one area is at the top, and two areas are at the bottom of both sides). Remove the cell gently, taking care not to damage it. Be careful not to peel off the masking tape in the three areas on the cell. 1 両面テープ3 箇所はがしながらセルをはずす. Remove the cell by peeling off the three pieces of double-sided adhesive tape. Figure 4-67 Replacing 14 Inch TMD fluorescent lamp (5) 4-84 Satellite A40 Maintenance Manual ( )

91 4.26 Fluorescent lamp 4 Replacement Procedure Assembling Fluorescent lamp Putting the double-sided tapes on the bezel 1. Attach the double-sided tape to the reverse side of the bezel, as shown in Figure Attach tape within tolerances from 0.0 to 0.5 from the opening of the bezel. ベゼル開口部より公差 0~0.5 の範囲で貼付すること The end of tape must not go beyond the opening of bezel. テープ端がベゼル開口部より越えないこと (tape width) ( テープ幅 ) 0 Reverse ベゼル裏面 side of the bezel Requirements for attaching 両面テープ貼り規格 double sided tape Tape must not go ベゼル開口部より beyond the opening テープのはみ出し無きこと of the bezel. Double-sided tape (4597, Sumitomo 3M) 両面テープ :4597( 住友 3M) (tape length) 285±0.5 ( テープ長さ ) The end of tape must not go beyond the opening of bezel. テープ端がベゼル開口部より越えないこと Tapes must not be overlapped. テープ同志重ならないこと Figure 4-68 Replacing 14 Inch TMD fluorescent lamp (6) Satellite A40 Maintenance Manual ( ) 4-85

92 4 Replacement Procedure 4.26 Fluorescent lamp Checking the backlight 1. Inspect the replacement backlight according to Figure The frame must not be overlaid with the prism sheet, etc. プリズムシート類がフレームに乗り上げていないこと The frame must not be overlaid with the prism sheet, etc. プリズムシート類がフレームに乗り上げていないこと The sheet must not be dislocated from the frame. シートがフレームからはずれていないこと Sheet retaining tape シート押えテープ Align the tape with the rib of frame. フレームのリブに突きあてて貼る The frame must not 乗り上げないこと be overlaid. The sheet must not be dislocated from the frame. シートがフレームからはずれていないこと The sheet must not be dislocated from the frame. シートがフレームからはずれていないこと The frame must not be overlaid with the sheet. シートがフレームに乗り上げないこと A Figure 4-69 Replacing 14 Inch TMD fluorescent lamp (7) 4-86 Satellite A40 Maintenance Manual ( )

93 4.26 Fluorescent lamp 4 Replacement Procedure Assembling PCB-assembly cell 1. Remove the paper (coated with a mold release) from the double-sided tape in the three areas on the replacement backlight unit. The areas are at the top and on both sides. See Figure Turn the backlight on. 3. Check that the backlight is free of dust, foreign objects, or damage. Perform this check also for the reverse side of the cell. Then install the cell of the PCB assembly in the backlight unit. CAUTION: Align the top left corner of the cell with the corresponding corner of the backlight unit, as indicated by 2 in Figure Be careful not to damage the TAB. 2 Align the top left 左上突き当て corner. PCB Cell of PCB 付きセルバックライト Backlight 1 Remove 両面テープ剥離紙とる the paper on :3 the 箇所 double-side tape (three locations). Figure 4-70 Replacing 14 Inch TMD fluorescent lamp (8) Satellite A40 Maintenance Manual ( ) 4-87

94 4 Replacement Procedure 4.26 Fluorescent lamp Folding down and temporary fixing of the TAB/PCB 1. Fold down the TAB (PCB) toward the reverse side of the backlight unit, as shown in Figure CAUTION: Be careful not to damage the TAB. For the X-PCB XPCBtoward を裏面に折り曲げ the reverse. side. 1 Figure 4-71 Replacing 14 Inch TMD fluorescent lamp (9) 4-88 Satellite A40 Maintenance Manual ( )

95 4.26 Fluorescent lamp 4 Replacement Procedure Setting the bezel 1. Start installing the bezel in the upward direction until it stops at the top left corner. CAUTION: The GND-CU and lamp reflector on the left-hand side must not go beyond the edges of the bezel. Be careful not to damage the cables and TAB. The bezel latches must be engaged (there are five latches on the top edge, and two latches on the bottom edge). 2 2 Next, fit 次にた the bezel s TAB 側をはめる edge. close to ラッチ the TAB. 5か所をはめる. Close the five latches GND-CU The fold 折り曲げ有り of GND-CU. ベゼルの外に出ないこと. must not go beyond the The fold of リフレクタ折り曲げ有り reflector must not. go beyond the ベゼルの外に出ないこと bezel s edge. First, ベゼルをランプ側からはめる fit the bezel s edge. close to the lamp. ケーブルをキズつけないように注意 Use care not to damage the bl ラッチ2 箇所有り. Two latches Figure 4-72 Replacing 14 Inch TMD fluorescent lamp (10) Satellite A40 Maintenance Manual ( ) 4-89

96 4 Replacement Procedure 4.26 Fluorescent lamp Fasten screws of the PCB and bezel 1. Fasten four screws on the left edge in the order (5), (6), (7), and (8) shown in Figure Fasten four screws on the right edge in the order (1), (2), (3), and (4) shown in Figure CAUTION: Fasten the screws in the orders shown in Figure No loose fastening is allowed. The tightening torque must not exceed 0.147N m (1.5kgf cm) for all the eight screws. For the Philips screwdrivers, use an insert bit of point size 0. Fasten ネジ (M2X2.2)8 the eight 箇所しめる M2 2.2 screws Figure 4-73 Replacing 14 Inch TMD fluorescent lamp (11) 4-90 Satellite A40 Maintenance Manual ( )

97 4.26 Fluorescent lamp 4 Replacement Procedure Attaching the tapes and insulation sheet 1. Attach the PCB insulation sheet (one point). 2. Attach the tape for the bezel to the bottom area close to the lamp (two points). 3. Attach the tape for fixing the FL tube cable (one point). CAUTION: When attaching tape and insulation sheet, be careful not to damage the TAB and lamp cable connections. 1 絶縁シート貼り付け Attaching the insulation sheet 絶縁シートのたわみ無きよう貼り付ける Attach the sheet after removing. slack. 1 PCB The がフレームに frame must not be 乗り上げて無いこと overlaid with the PCB. Align リフレクタ端を目安に貼る the sheet with the reflector's edge. Align モジュール端を目安に貼る the sheet with the module's edge. Attach ベゼルが浮かない様 the sheet by, pressing 押しながら貼る it so that. the bezel may not "fly". Align the sheet リフレクタ端を目安に貼る with the reflector's edge. Align the sheet モジュール端を目安に貼る with the module's edge. 2 The tape edge must not モジュール表面に出ないこと protrude from the surface of the module. 2 モジュール表面に出ないこと The tape edge must not protrude from the surface of the module. Attaching ベゼルテープ貼り付け the tape for the bezel Requirements for attachment: The tape edge must not go beyond the bezel's edge. 貼り基準 : ベゼル端から出ないこと 5 Requirements for attachment: The 貼り基準 : tape edge must not go モジュール端を目安に貼る beyond the module's edge. ゴムキャップ : ケーブル引き出し口を覆うこと Rubber cap: Must cover the opening for the cable. Figure 4-74 Replacing 14 Inch TMD fluorescent lamp (12) Satellite A40 Maintenance Manual ( ) 4-91

98 4 Replacement Procedures 4.26 Fluorescent lamp Replacing the 15.0 Inch XGA CHIMEI Fluorescent lamp Disassembling the 15.0 Inch XGA CHIMEI Fluorescent lamp To disassemble the 15.0 inch XGA CHIMEI fluorescent lamp, follow the steps below and refer to figures 4-75 to Remove the CU tape, yellow tape and protector film X. Protector film X Tape CU tape Figure 4-75 Replacing 15.0 Inch CHIMEI fluorescent lamp (XGA) (1) 4-92 Satellite A40 Maintenance Manual ( )

99 4.26 Fluorescent lamp 4 Replacement Procedures 2. Remove the two screws (B) fixing the X-PCB. Then remove the eight screws (C) fixing the metal frame. Release the two hooks (A). (B) Screw Screw (B) (A) hook (C) (C) (C) (C) Detail (A) (C) (C) Screw (C) (C) (A) hook Figure 4-76 Replacing 15.0 Inch CHIMEI fluorescent lamp (XGA) (2) Satellite A40 Maintenance Manual ( ) 4-93

100 4 Replacement Procedures 4.26 Fluorescent lamp 3. Release the latch. NOTE: Remove the metal frame parallel no to damage it. Latch Metal frame Backlight Figure 4-77 Replacing 15.0 Inch CHIMEI fluorescent lamp (XGA) (3) 4-94 Satellite A40 Maintenance Manual ( )

101 4.26 Fluorescent lamp 4 Replacement Procedures 4. Remove the X-PCB. When removing the X-PCB, be careful not to damage the TCP. X-PCB Panel Back light unit Figure 4-78 Replacing 15.0 Inch CHIMEI fluorescent lamp (XGA) (4) Satellite A40 Maintenance Manual ( ) 4-95

102 4 Replacement Procedures 4.26 Fluorescent lamp 5. Remove the three spacers from the BEFIII-M diffuser sheet. Remove the DEFIII-M diffuser sheet, BEFIII-T diffuser sheet and two tapes from the backlight unit in order. When removing the sheets, be careful not to damage them. BEFIII-T diffuser sheet BEFIII-M diffuser sheet Spacer Diffuser sheet LGP Backlight unit Tape Tape Reflector sheet Figure 4-79 Replacing 15.0 Inch CHIMEI fluorescent lamp (XGA) (5) 6. Remove the two screws. Screw Screw Housing Lamp assembly Figure 4-80 Replacing 15.0 Inch CHIMEI fluorescent lamp (XGA) (6) 4-96 Satellite A40 Maintenance Manual ( )

103 4.26 Fluorescent lamp 4 Replacement Procedures Assembling the 15.0 Inch XGA CHIMEI fluorescent lamp To assemble procedure of the 15.0 inch XGA CHIMEI fluorescent lamp, follow the reverse steps of the disassembling steps above. Satellite A40 Maintenance Manual ( ) 4-97

104 4 Replacement Procedures 4.26 Fluorescent lamp Replacing the 15.0 Inch XGA LG.Philips Fluorescent lamp CAUTION: When replacing the fluorescent lamp, wear finger covers or gloves to avoid contaminating or damaging the LCD panel. Be careful not to let dust or other foreign substance into the module. Disassembling the 15.0 Inch XGA LG.Philips Fluorescent lamp To disassemble the 15.0 inch XGA LG.Philips fluorescent lamp, follow the steps below and refer to figures 4-81 to Remove the outside tape and cover shield. 1) Remove the adhesive tape fixing the B/L wire. Be careful not to apply to the B/L wire. 2) Remove the cover shield (G). Be careful not to apply excessive force to the gate TCP. 3) Remove the cover shield (C). Be careful not to apply excessive force to the source PCB. CUATION: Wear anti-static gloves to prevent circuit damage caused by ESC. 4) Remove the tape shield and adhesive tape fixing the top tape. Be careful not to apply excessive force to the top case. Cover shield (C) Cover shield (G) Adhesive tape Adhesive tape Tape shield Figure 4-81 Replacing 15.0 Inch LG.Philips fluorescent lamp (XGA) (1) 4-98 Satellite A40 Maintenance Manual ( )

105 4.26 Fluorescent lamp 4 Replacement Procedures 2. Remove the top case. Be careful not to apply excessive force to the top case and gate TCP. Satellite A40 Maintenance Manual ( ) 4-99

106 4.26 Fluorescent lamp 4 Replacement Procedures Replacing the 15.0 Inch SXGA+ LG.Philips Fluorescent lamp CAUTION: When you replace the fluorescent lamp, wear finger covers or gloves to avoid contaminating or damaging the LCD module. Be careful not to let dust or other foreign substances into the LCD module. Disassembling the 15.0 Inch SXGA+ LG.Philips Fluorescent lamp To disassemble the 15.0 inch SXGA+ LG.Philips fluorescent lamp, follow the steps below and refer to figures to Remove the outside tape and cover shield. 1) Remove the adhesive tape fixing the B/L wire. Be careful not to apply excessive force to the B/L wire. 2) Remove the cover shield (G). Be careful not to apply excessive force to the gate TCP. 3) Remove the cover shield (C). Be careful not to apply excessive force to the source PCB. CAUTION: Wear anti-static gloves to prevent circuit damage caused by ESC. 4) Remove the tape shield and adhesive tape fixing the top case. Be careful not to apply excessive force to the top case. Cover shield (C) Cover shield (G) Adhesive tape Adhesive tape Tape shield Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (1) Satellite A40 Maintenance Manual ( ) 4-127

107 4 Replacement Procedures 4.26 Fluorescent lamp 2. Remove the top case. Be careful not to apply excessive force to the top case or gate TCP. Top case Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (2) 3. Remove the source PCB and gate PCB. 1) Remove the source PCB. Be careful not to apply excessive force to the PCB or TCP when removing double-sided tape. 2) Remove the gate PCB. Be careful not to apply excessive force to the PCB or TCP when removing double-sided tape. Source PCB Gate PCB Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (3) Satellite A40 Maintenance Manual ( )

108 4.26 Fluorescent lamp 4 Replacement Procedures 4. Remove the board assembly, adhesive tape, light guide and cover assembly bottom (L). 1) Remove the board assembly. NOTE: This process should be made in a clean room to prevent scratch or particle on polarizer or B/L assembly. 2) Remove the adhesive tape fixing the sheets (four points). 3) Remove the sheets and light guide. NOTE: No penetration of foreign object is indispensable not to scratch on the surface of each sheet. 4) Remove the two screws fixing the cover assembly bottom (L). NOTE: Maximum value of torque is 1.5kg cm. Board assembly Adhesive tape Adhesive tape Double-sided tape Double-sided tape Adhesive tape Sheets and light guide Adhesive tape Screw Cover assembly bottom (L) Screw Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (4) Satellite A40 Maintenance Manual ( ) 4-129

109 4 Replacement Procedures 4.26 Fluorescent lamp Assembling the 15.0 Inch SXGA+ LG.Philips Fluorescent lamp To assembling the 15.0 inch SXGA+ LG.Philips fluorescent lamp, follow the steps below and refer to figures to Install the cover assembly bottom (L), sheets, light guide, adhesive tape and board assembly. 1) Remove the protect sheet from the cover assembly bottom (L). 2) Secure the cover assembly bottom (L) with the two screws. NOTE: Maximum value of torque is 2.0kg cm. 3) Install the light guide and sheets. (Secure the reflection sheet with doublesided tape.) NOTE: No penetration of foreign object is indispensable not to scratch on the surface of the sheets and light guide. 4) Stick the adhesive tape to fix the sheets. 5) Install the board assembly. (Secure the gate PCB with double-sided tape.) NOTE: Be careful not to apply excessive force to the PCB and TCP. Double-sided tape Board assembly Adhesive tape Adhesive tape Double-sided tape Double-sided tape Double-sided tape Adhesive tape Sheets and light guide Adhesive tape Screw Cover assembly bottom (L) Screw Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (5) Satellite A40 Maintenance Manual ( )

110 4.26 Fluorescent lamp 4 Replacement Procedures 2. Install the source PCB and gate PCB. 1) Install the source PCB. Be careful not to apply excessive force to the TCP. 2) Install the gate PCB. Be careful not to apply excessive force to the TCP. Source PCB Gate PCB Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (6) 3. Install the top case. Be careful not to apply excessive force to the gate TCP. Top case Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (7) Satellite A40 Maintenance Manual ( ) 4-131

111 4 Replacement Procedures 4.26 Fluorescent lamp 4. Stick the out side tape and cover shield. 1) Install the tape shield and adhesive tape to fix the top case. Be careful not to apply excessive force to the top case. 2) Install the cover shield (C). Be careful not to apply excessive force to the control PCB. CAUTION: Wear anti-static gloves to prevent circuit damage caused by ESC. 3) Install the cover shield (G). Be careful not to apply excessive force to the gate TCP. 4) Stick the adhesive tape to fix the B/L wire. Be careful not to apply excessive force to the B/L wire. Cover shield (C) Cover shield (G) Adhesive tape Adhesive tape Tape shield Figure Replacing 15.0 Inch LG.Philips fluorescent lamp (SXGA+) (8) Satellite A40 Maintenance Manual ( )

112 4.26 Fluorescent lamp 4 Replacement Procedures Replacing the 15.0 Inch SXGA+ Sharp Fluorescent lamp CAUTION: When you replace the fluorescent lamp, wear finger covers or gloves to avoid contaminating or damaging the LCD module. Be careful not to let dust or other foreign substances into the LCD module. Disassembling the 15.0-inch SXGA+ Sharp Fluorescent lamp To disassemble the 15.0 inch SXGA+ Sharp fluorescent lamp, follow the steps below and refer to Figures to Turn the LCD module face down, and remove the protection cover S (A), protection cover G (B), fixing tape (C) and fixing tape for lead wire (D). NOTE: 1) Be careful not to damage the TCP or chips. 2) Discard the tapes removed. Do not reuse them. (A) Protection cover S (B) Protection cover (C) Fixing tape (D) Fixing tape for lead wire Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (1) Satellite A40 Maintenance Manual ( ) 4-133

113 4 Replacement Procedures 4.26 Fluorescent lamp 2. Remove the four screws on the sides. Screw loosening torque: 1.1kg cm Screw Screw Screw Screw Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (2) 3. Turn the LCD module face up and remove the bezel (E). (E) Bezel (3) Release the hook of the bezel from the lamp cover. < Side view > Hook (1) Release the bezel from the four latches of the lamp cover. (2) Release the two latches on the P-chassis. Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (3) Satellite A40 Maintenance Manual ( )

114 4.26 Fluorescent lamp 4 Replacement Procedures 4. Turn the LCD module face down. Remove four screws fixing the board and remove the FPC (G). Open the bent portion of the TCP of the board and remove the backlight. Screw loosening torque: 0.9kg cm Screw Screw Open the cap of the connector and remove the FPC. (G) FPC Screw Screw Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (4) Do not hold the edge. Do not hold the edge. Raise the board and make this condition. Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (5) Satellite A40 Maintenance Manual ( ) 4-135

115 4 Replacement Procedures 4.26 Fluorescent lamp 5. Turn the LCD module face up and remove the LCD panel (I) from the backlight unit (H). NOTE: Wear finger sacks or gloves during the work not to soil or scratch the LCD panel or backlight unit. (I) LCD panel (H) Backlight unit Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (6) 6. Turn the backlight unit (H) removed face down and remove two screws (D) and lamp cover (J). NOTE: Be careful not to scratch or soil the sheets. (H) Backlight unit Screw loosening torque: 1.1kg cm (D) Screw (J) Lamp cover (D) Screw Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (7) Satellite A40 Maintenance Manual ( )

116 4.26 Fluorescent lamp 4 Replacement Procedures 7. Turn the backlight unit face up and remove the upper diffusion sheet (K), lens sheet (L) and light guide (M). NOTE: The light guide and sheets are reused. Be careful not to scratch or soil them. Do not remove the reflection sheet under the light guide. (K) Upper diffusion sheet (L) Lens sheet (M) Light guide Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (8) 8. Remove the four double-sided tapes (N, O, P, Q). NOTE: Discard the removed tapes. Do not reuse them. (P) Double-sided tape 3 (N) Double-sided tape 1 (O) Double-sided tape 2 (Q) Double-sided tape 4 Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (9) Satellite A40 Maintenance Manual ( ) 4-137

117 4 Replacement Procedures 4.26 Fluorescent lamp 9. Turn the backlight unit face down and remove the lamp unit (R) from the P-chassis. CAUTION: When removing the lamp unit, be careful not to break the lamp, or bend the reflection sheet. P-chassis (R) Lamp unit Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (10) Satellite A40 Maintenance Manual ( )

118 4.26 Fluorescent lamp 4 Replacement Procedures Assembling the 15.0 Inch SXGA+ Sharp Fluorescent Lamp To assemble the 15.0 inch SXGA+ Sharp fluorescent lamp, follow the steps below and refer to Figures to Stick four double-sided tapes (N, O, P, Q) on the P-chassis. Standard for edge of P-chassis (P) Do not make the P-chassis over this line. (N) 0 to 1 mm (Q) (O) Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (11) Satellite A40 Maintenance Manual ( ) 4-139

119 4 Replacement Procedures 4.26 Fluorescent lamp 2. Turn the backlight unit face down and install a new lamp unit (R) on the P-chassis. P-chassis (R) Lamp unit Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (12) NOTE: When install the lamp unit, be careful not to bend or damage the reflection sheet. Z Z Install the lamp unit without floating. Install the reflection sheet as it is placed inside the reflector. Install the lead wire into this groove. Cross-section drawing of Z-Z Figure Replacing 15.0 Inch Sharp fluorescent lamp (SXGA+) (13) Satellite A40 Maintenance Manual ( )